Other Research Topics
For current research topics, see here. The following partial selection has been taken from a full list of approx. 200 papers and book chapters in the publications list here. If you have difficulty finding a paper, please email me.
Colour constancy
- Colour constancy: A review and table of 80 colour constancy indices
- Colour appearance: A review
- Is colour constancy phenomenal or projective?
- Explaining colour constancy in natural scenes
- Does colour constancy exist?
- Colour constancy with and without an illuminant cue
- Do instructions and task affect colour-constancy judgements?
- Spatially parallel detection of violations of colour constancy
- Displacement colour constancy
- Minimalist surface-colour matching
- Colour constancy with real three-dimensional scenes and objects
- Minimum-variance cone-excitation ratios and the limits of relational colour constancy
- Dependence of relational colour constancy on the extraction of a transient sign
- Colour constancy under fast illuminant changes
- Relational colour constancy in achromatic and isoluminant images
- Relational colour constancy from invariant cone-excitation ratios
- Operational approach to colour constancy
- Minimalist surface-colour matching
Surface colour
- Frequency of metamerism in natural scenes
- Predicting frequency of metamerism by the entropy of colours
- Using colour to retrieve information from natural scenes
- Information limits on surface identification by apparent colour
- Low-dimensional models of reflectance spectra
- Perceptual limits on low-dimensional models of Munsell reflectance spectra
- Nonparametric nonlinear alternative to von Kries scaling?
- Information limits on neural identification of surface colour
- Dependence of illuminant estimates on number of surfaces
- How many perceptually distinct surface colours in natural scenes?
- Statistics of cone-exictation ratios in natural scenes
- Dichoptically detecting changes in cone-excitation ratios
- Detecting natural changes of cone-excitation ratios in simple and complex coloured images
- Estimating surface spectral reflectance with an RGB camera
Receptoral and post-receptoral coding
- Chromatic function of the cones: A review
- Coding efficiency of CIE colour spaces
- Anomalous loss in blue-green wavelength discrimination with brief monochromatic stimuli
- Isolation of opponent-colour mechanisms at increment threshold
- Test and field spectral sensitivities reveal unitary opponent-colour processes
- Rod- and cone-mediated interactions in fine-grain motion
- Rod-cone interaction in the after-flash effect
- Interactions between blue- and red-sensitive colour mechanisms in metacontrast masking
- Changes in field spectral sensitivities of red-, green- and blue-sensitive colour mechanisms on small fields
Motion processing
- Fine-grain motion as a
perceptual probe of neuronal connectivity
- Differences in specialization of the central and peripheral retina for motion and acuity
- Overshoot of curvature in apparent motion
- Apparent motion and preferred paths in the rotation group SO(3)
- Apparent motion and the calculus of variations
- Response of the eye to moving spatially periodic patterns
- Model of the eye's response to moving spatially periodic stimuli
- Stroboscopic motion: movement without direction
Statistical applications
- Model-free estimation of the psychometric function
- Non-parametric local polynomial estimates of stimulus-response functions
- Automatic repeated-loess decomposition of sums of oscillatory curves
- Bootstrap threshold estimates from psychometric functions
- Superiority of bootstrap to incremental and probit variance estimators of thresholds
- Bootstrap variance estimators for the parameters of small-sample sensory-performance functions
- Second- and third-order natural scene statistics
Fuzzy geometry
- Fuzzy topological groups
- Fuzzy differentiation
- Fuzzy C1 manifolds
- Classical and fuzzy differential methods in shape analysis
- Elements of a fuzzy geometry for visual space
Search and detection
- Reference frame for rapid visual processing of line orientation
- Asymmetries of saccadic eye movements in oriented-line-target search
- Visual search in natural scenes explained by local colour properties
- Limitations of rapid parallel processing in the detection of long and short oriented line targets
- Multiple groups of orientation-selective visual mechanisms underlying rapid orientated-line detection
- Orientation contrast vs orientation in line-target detection
- Asymmetries in oriented-line detection indicate two orthogonal filters in early vision
- Horizontal-vertical filters in early vision predict anomalous line-orientation identification frequencies
- Parallel detection of oriented line targets
Line and curvature discrimination
- Cue for contour-curvature discrimination
- Viewpoint-invariant Weber fractions and standard contour-curvature discrimination
- Artificial neural networks simulating texture segmentation and target detection in line-element images
- Parallel categorical coding of contour curvature
- Discrimination and identification of briefly viewed line gaps and offsets
- Discrimination and
identification of briefly viewed curved lines
- Irrelevance of local position information in adaptation to random arrays of geometric elements
Object and pattern recognition
- Recognizing novel three-dimensional objects by summing signals from parts and views
- Minimal information to determine affine shape equivalence
- Natural groups of transformations for apparent motion and object shape and colour
- Statistical analysis of human sensitivity to phase perturbations in natural images
- Statistical analysis of human sensitivity to phase perturbations in natural images
- Second- and third-order statistics in the discriminability of natural images
- Qualitative cues in the discrimination of affine-transformed minimal patterns
- Operating on spatial relations
- Horizontal-vertical structure in the visual comparison of rigidly transformed patterns
- Selective internal operations in the recognition of locally and globally point-inverted patterns
- Visual comparison of patterns under point-inversion, positional symmetry, and separation
- Structure of visual space and generalized pattern recognition
- Transformation and relational-structure schemes for visual pattern recognition
- Visual comparison of rotated, reflected, and displaced random-dot patterns
Colour vision in inherited and acquired defects in the eye
- Cone photoreceptor mosaic disruption associated with M-cone-opsin mutation
- Progressive tritanopia revealed with adaptive-optics imaging
- Colour constancy of red-green dichromats and anomalous trichromats
- Anomalous trichromats' judgments of surface colour in natural scenes
- Colour constancy of red-green dichromats
- Colour constancy of protanopes with natural reflectance spectra
- Colour constancy of tritanopes
Defects of vision in multiple sclerosis and optic neurits
- Improved conduction with 4-aminopyridine in patients with multiple sclerosis
- Correlation of MRI lesions with visual deficit in secondary progressive multiple sclerosis
- Rod- and cone-mediated visual function in multiple sclerosis
- Paradoxical effects of temperature in multiple sclerosis
- Differences in luminance and chromatic funtion near a scotoma
- Visual function in hereditary motor and sensory neuropathy
- Visual loss in multiple
sclerosis and previous optic neuritis
- Variations in temporal response with retinal location in optic neuritis
- Paradoxical effects of temperature in multiple sclerosis
- Nonselective losses in chromatic and luminance sensitivity in multiple sclerosis
- Variability of visual threshold in multiple sclerosis
- Chromatic and luminance flicker perception in multiple sclerosis
Defects of vision in diabetes
- Short-term changes in blood glucose in visual pathway function in type 1 diabetes mellitus (IDDM)
- Colour discrimination and electroretinography in aretinopathic IDDM patients
- Blood glucose changes over 3 months and colour discrimination in aretinopathic IDDM patients
- Diabetes associated increases in lens optical density on colour discrimination in IDDM
- Detection of colour vision abnormalities in IDDM patients with angiographically normal retinas
- Abnormalities hue discrimination with very brief stimuli in diabetes mellitus and in optic neuritis
- Abnormalities in hue discrimination revealed with brief stimuli in diabetes mellitus and in optic neuritis